Re: [CAD_CAM_EDM_DRO] encoder pin out.

Jon Elson wrote:

>
> > BE-178A5 Z=250 IP64/IP50 other marking are in
> > Cyrillic and then CCCP.
>
> You might open it up and poke around carefully inside. Most
> of the older units had discrete components on a PC board, and
> you can figure out the power terminals because they will have
> a polarized capacitor between those 2 terminals. Once you
> know the correct power terminals, you can figure out the
> rest with a DVM and turning the shaft.
>
> Jon

Interesting insides to this beast. Two IC's on one board, three transistors on another and maybe leads to 6 diodes arranged in a
circle. Glass disk with chrome...and what I assume is a light source on the other side of the disk. Lots of caps but nothing with a
polarity marked. manufacture date is '88. and most of the semiconductors the year before.

Dave